Finding the Fourth Proportional to 10,992.88, 16,495.80 and 4,072.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992.88 : 16,495.80 = 4,072.24 : x
2. Step 2: Convert to fraction form
   10,992.88/16,495.80 = 4,072.24/x
3. Step 3: Cross multiply
   10,992.88x = 16,495.80 × 4,072.24
4. Step 4: Simplify right side
   10,992.88x = 67,174,856.59
5. Step 5: Solve for x
   x = 67,174,856.59/10,992.88
6. Step 6: Final answer
   x = 6,110.76